Merkle, a customer relations management (CRM) company has acquired San Francisco-based 5th Finger, a mobile marketing and mobile health vendor for an undisclosed sum. While 5th Finger has a number of big retail brands as clients, including Jos. A Bank and Safeway, it has also powered Pfizer, Medtronic, and GlaxoSmithKline's mobile health initiatives.
The company set up a text messaging-powered...